As far as what color Dev Part C should look like, mine looks like Merlot wine. I have had my kit about a month, mixed half as working solution, you see below the other half, that I have not mixed.

Re you issue, gosh, 330ml of working solution for three rolls of film seem a bit "thin". When I run 1 roll of 35 or 120, I use 500ml, just to ensure enough of the active agents in the chemistry are there. It might be a bit conservative, but has worked for me. Although I process by hand so maybe 330ml on a Jobo is normal.